Again from [1]}
\(\begin{split}\Lambda u(y,T_{\ast })-\Lambda u(x,T_{\ast }) & \le \frac{1}{\pi }\int _{0}^{\frac{\xi }{2}}\frac{\omega _{\lambda }(\xi +2\eta )+\omega _{\lambda }(\xi -2\eta )-2\omega _{\lambda }(\xi )}{\eta ^{2}}\operatorname{d}\eta \\& +\frac{1}{\pi }\int _{\frac{\xi }{2}}^{\infty }\frac{\omega _{\lambda }(2\eta +\xi )-\omega _{\lambda }(2\eta -\xi )-2\omega _{\lambda }(\xi )}{\eta ^{2}}\operatorname{d}\eta \\& \le \lambda J(\lambda \xi ),\end{split}\) 
